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Periodically poled lithium tantalate crystals created by influence of optical radiation

Periodically poled lithium tantalate crystals created by influence of optical radiation
Periodically poled lithium tantalate crystals created by influence of optical radiation
Quasi-phase matching by periodical inversion of ferroelectric domains can achieve high conversion efficiency for second harmonic generation. Intensive studies on fabrication, characterization and performance of second harmonic generation devices on periodically inverted ferroelectric domain LiTaO3 crystals are taking place [2], but studies on basic material properties of LiTaO3 in the domain inversion process are lacking. On the other hand all post-growth-techniques for achieving periodic domain profiles require either specialist clean-room photolithographic fabrication of patterned electrodes, or lengthy thermal or electron-beam scanning processes. Recently the experiments demonstrating the advantages of direct optical control of ferroelectric domain profiles have been carried out [4]. Here we present our findings and detailed analysis on time dependence of the ferroelectric coercive field after domain inversion of the LiTaO3 crystal and report a simple room temperature technique for patterning the domain profile by the simultaneous application of optical and electric fields without the need for photolithographic processing
72-79
National Academy of Sciences of Armenia
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Brown, P.T.
c0ceea70-af5f-4b50-9c67-93e32a198336
Pogosyan, A.R.
f56c2210-fa78-4581-8daa-e7452b8542fd
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Brown, P.T.
c0ceea70-af5f-4b50-9c67-93e32a198336
Pogosyan, A.R.
f56c2210-fa78-4581-8daa-e7452b8542fd

Eason, R.W., Brown, P.T. and Pogosyan, A.R. (1998) Periodically poled lithium tantalate crystals created by influence of optical radiation. In Proceedings of Conference on Laser Physics - 98. National Academy of Sciences of Armenia. pp. 72-79 .

Record type: Conference or Workshop Item (Paper)

Abstract

Quasi-phase matching by periodical inversion of ferroelectric domains can achieve high conversion efficiency for second harmonic generation. Intensive studies on fabrication, characterization and performance of second harmonic generation devices on periodically inverted ferroelectric domain LiTaO3 crystals are taking place [2], but studies on basic material properties of LiTaO3 in the domain inversion process are lacking. On the other hand all post-growth-techniques for achieving periodic domain profiles require either specialist clean-room photolithographic fabrication of patterned electrodes, or lengthy thermal or electron-beam scanning processes. Recently the experiments demonstrating the advantages of direct optical control of ferroelectric domain profiles have been carried out [4]. Here we present our findings and detailed analysis on time dependence of the ferroelectric coercive field after domain inversion of the LiTaO3 crystal and report a simple room temperature technique for patterning the domain profile by the simultaneous application of optical and electric fields without the need for photolithographic processing

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More information

Published date: 1998
Venue - Dates: Conference on Laser Physics - 98, Armenia, 1998-10-19 - 1998-10-23

Identifiers

Local EPrints ID: 76600
URI: https://eprints.soton.ac.uk/id/eprint/76600
PURE UUID: aa1cb4e5-d87b-4567-a914-fe138954ebb4
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 06 Jun 2018 13:13

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